Results 11 to 20 of about 12,017 (229)

1,2,3-Triazoles as Amide-bond Surrogates in Peptidomimetics

open access: yesCHIMIA, 2013
1,2,3-Triazoles represent a class of heterocycles with interesting properties for application in peptide sciences since they closely resemble amide bonds while being stable to enzymatic degradation.
Ibai E. Valverde, Thomas L. Mindt
doaj   +5 more sources

A practical flow synthesis of 1,2,3-triazoles. [PDF]

open access: yesRSC Adv, 2022
Copper-on-charcoal is an excellent heterogeneous catalyst for the alkyne–azide cycloaddition reaction performed under continuous flow conditions. 2-Ynoic acids undergo decarboxylation/cycloaddition cascade giving triazoles bearing small alkyl chains.
Drelinkiewicz D, Whitby RJ.
europepmc   +5 more sources

1,2,3-Triazoles as Biomimetics in Peptide Science [PDF]

open access: yesMolecules, 2021
Natural peptides are an important class of chemical mediators, essential for most vital processes. What limits the potential of the use of peptides as drugs is their low bioavailability and enzymatic degradation in vivo. To overcome this limitation, the development of new molecules mimicking peptides is of great importance for the development of new ...
Naima Agouram   +2 more
openaire   +3 more sources

Three-component synthesis of 1,2,3-triazoles in the presence of PVC-supported triazole-copper complex by click reaction [PDF]

open access: yesشیمی کاربردی روز, 2020
In this research work novel PVC-supported triazole-copper(I) iodide catalyst (PVC–Triazole–CuI) was prepared and used the for synthesis of 1,2,3-triazoles.
Ali Keivanloo   +2 more
doaj   +1 more source

5-Formyltriazoles as Valuable Starting Materials for Unsymmetrically Substituted Bi-1,2,3-Triazoles

open access: yesFrontiers in Chemistry, 2020
Herein, we present the first synthetic methodologies toward non-symmetrical 5,5′-C, C-linked bi-1,2,3-triazoles starting from 5-formyl-1,2,3-triazole via two related pathways.
Robby Vroemans   +3 more
doaj   +1 more source

Syntheses and Applications of 1,2,3-Triazole-Fused Pyrazines and Pyridazines

open access: yesMolecules, 2022
Pyrazines and pyridazines fused to 1,2,3-triazoles comprise a set of heterocycles obtained through a variety of synthetic routes. Two typical modes of constructing these heterocyclic ring systems are cyclizing a heterocyclic diamine with a nitrite or ...
Gavin R. Hoffman, Allen M. Schoffstall
doaj   +1 more source

A recent overview on the synthesis of 1,4,5-trisubstituted 1,2,3-triazoles

open access: yesBeilstein Journal of Organic Chemistry, 2021
Diverse strategies for the efficient and attractive synthesis of a wide variety of relevant 1,4,5-trisubstituted 1,2,3-triazole molecules are reported. The synthesis of this category of diverse fully functionalized 1,2,3-triazoles has become a necessary ...
Pezhman Shiri   +2 more
doaj   +1 more source

Synthesis of Deuterated 1,2,3-Triazoles [PDF]

open access: yesThe Journal of Organic Chemistry, 2012
The copper-catalyzed azide-alkyne cycloaddition (CuAAC) is a highly effective method for the selective incorporation of deuterium atom into the C-5 position of the 1,2,3-triazole structure. Reactions of alkynes and azides can be conveniently carried out in a biphasic medium of CH(2)Cl(2)/D(2)O, using the CuSO(4)/Na ascorbate system. The mildness of the
Hari K, Akula, Mahesh K, Lakshman
openaire   +2 more sources

Synthesis of β-triazolylenones via metal-free desulfonylative alkylation of N-tosyl-1,2,3-triazoles

open access: yesBeilstein Journal of Organic Chemistry, 2021
Desulfonylative alkylation of N-tosyl-1,2,3-triazoles under metal-free conditions leading to β-triazolylenones is reported here. The present study encompasses the synthesis of triazoles with a new substitution pattern in a single step from cyclic 1,3 ...
Soumyaranjan Pati   +3 more
doaj   +1 more source

Study of the mechanism of antibacterial action of 1,4-di- and 1,4,5-trisubstituted 1Н-1,2,3-triazoles by molecular modeling

open access: yesЖурнал Белорусского государственного университета: Химия, 2020
The target for antibacterial action of 1,4-di- and 1,4,5-trisubstituted 1H-1,2,3-triazoles against E. coli ATCC 25922 and S. aureus ATCC 6538 was proposed.
Cyril M. Verbilo   +4 more
doaj   +1 more source

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